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    <title>Topic_2</title>
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<body>
    <table>
        <caption>产品月销量</caption>
        <thead>
            <tr>
                <th>ID</td>
                <th>产品名称</td>
                <th>销量</td>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>2021090901</td>
                <td>马克杯</td>
                <td>5200</td>
            </tr>
        </tbody>
        <tbody>
            <tr>
                <td>2021090901</td>
                <td>啤酒杯</td>
                <td>5200</td>
            </tr>
        </tbody>
        <tbody>
            <tr>
                <td>2021090901</td>
                <td>搪瓷杯</td>
                <td>3500</td>
            </tr>
        </tbody>
        <tfoot>
            <tr>
                <td colspan="2"><strong>合计</strong></td>
                <td><strong>13700</strong></td>
            </tr>
        </tfoot>
    </table>
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